CVE-2026-7374

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Esto permite al atacante acceder a cualquier socket Unix en el host, lo que podr\u00eda llevar al control total del nodo y de todo el cl\u00faster."}], "id": "CVE-2026-7374", "lastModified": "2026-09-10T13:20:31.720", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 6.0, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 6.0, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-7374", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-05-26T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-05-26T14:16:40.717", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:20720"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:20736"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:20763"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:20767"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:20782"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:20825"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:20866"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:20886"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:20890"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:20975"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-7374"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2463728"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:20720"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:20736"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:20763"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:20767"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:20782"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:20825"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:20866"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:20886"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:20890"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:20975"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/security/cve/CVE-2026-7374"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2463728"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7374.json"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-59"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

{"acknowledgement": "This issue was discovered by Sarah Bennert (Red Hat) and Stoyan Nikolov (Red Hat).", "bugzilla": {"description": "kubevirt: KubeVirt virt-handler: Privilege escalation and node compromise via symlink following vulnerability", "id": "2463728", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2463728"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-59", "details": ["A flaw was found in KubeVirt's virt-handler component. This vulnerability allows an authenticated OpenShift user with edit permissions in a single namespace to exploit improper symlink validation when connecting to virtual machine console sockets. By replacing the console socket with a symlink to the host's container runtime (CRI-O) socket, an attacker can hijack virt-handler's privileged connection. This enables the attacker to access any Unix socket on the host, potentially leading to full control of the node and the entire cluster."], "mitigation": {"lang": "en:us", "value": "Update cluster RBAC to not allow exec into virt-launcher pods."}, "name": "CVE-2026-7374", "package_state": [{"cpe": "cpe:/a:redhat:container_native_virtualization:4", "fix_state": "Affected", "package_name": "container-native-virtualization/virt-handler-rhel9", "product_name": "Red Hat OpenShift Virtualization 4"}], "public_date": "2026-05-26T12:30:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-7374\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-7374"], "statement": "This is an Important privilege escalation flaw in KubeVirt's virt-handler component. An authenticated OpenShift user with edit permissions in a single namespace can exploit improper symlink validation to hijack virt-handler's privileged connection. This allows access to any Unix socket on the host, leading to potential full control of the node and the entire cluster.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 85.0, "confidence_source": "matching", "scores": [{"score": 85.0, "source": "matching"}]}, "original": {"product": "Red Hat OpenShift Virtualization 4", "source": "cna", "vendor": "Red Hat"}, "product": "openshift_virtualization", "vendor": "redhat"}], "created": "2026-05-26T15:15:08.636973+00:00", "updated": "2026-05-27T09:30:26.803292+00:00", "vendors": ["redhat", "redhat$PRODUCT$openshift_virtualization"]}